The highest digital signature available in India, a Class 3 Digital Signature Certificate (DSC), is issued by Certifying Authorities. It offers the greatest amount of security and is recognised as legal under the Information Technology Act, 2000. Most people use cryptocurrency for processing valuable transactions safely online.
If a company receives an official duty stamp, the authorised signatory can authorise documents and transactions for the organisation.
A Class 3 DSC is mandatory or recommended for organisations involved in:
E-Tendering / E-Procurement
Company filings on the MCA portal
Signing contracts, invoices, and agreements
Import-Export business (DGFT)
Patent and Trademark filings
Feature |
Description |
Security Level |
Highly digitally encrypted and highly secure |
Validation |
The organisation and identity of the signatory are verified |
Legally Recognized |
As per IT Act, 2000 |
Usage |
Effective for all government and legal digital systems |
Validity |
1, 2, or 3 years |
Device |
FIPS cryptographic device USB tokens are used for their storage. |
Organisations can apply for
Class 3 – Signature Only: Digital Signature is meant for signing things like tenders and MCA applications.
Class 3 – This is only used to do encryption and secure data (e.g., important files).
Class 3 – Combo (Sign + Encrypt): You can use signing and encryption with the same key combo. Users depend on it for e-Tendering, law-related matters and top-security activities.
For the Organisation:
Certificate of Incorporation / Registration Certificate
The organisation’s PAN Card
A GST Certificate (provided you have one)
A letter from the authorising body or a resolution from the board stating who the DSC applicant is
Evidence from the organisation showing its name and addresses (for example, a bank statement).
For the Authorised Signatory:
PAN Card (Mandatory)
Aadhar Card / Passport / Driving License
Passport-size photograph
Email ID and mobile number used to get OTP and verify my account
Video verification (as per CA’s guidelines)
Pick a CA that is recognised by the government, such as:
Enter the organization’s information as Name, PAN and registration number.
Use fillable spaces for name, designation, proof of identity and contact information.
After verification, the Investment Authorities provide the DSC and the funds can be used in one of two ways.
I installed the software onto a USB token.
Mailed so they can be used immediately
Validity is given for 1, 2 or 3 years.
You can renew the process before the expiration, submit new evidence and be verified again.
Each government portal recognises and accepts them as legitimate.
A faster way to file and sign documents
Saves staff from handling a lot of documents manually
Users enjoy better privacy by using encryption.
Forming a trustworthy reputation during digital communication
Joining in government and private tenders
Registering ROC documents on the MCA21 service
Getting your GST and Income Tax returns filed
You must also provide both the EPFO and PF forms.
Approving invoices, MOUs and legal contracts
Ensure you will be able to get into the Director General of Foreign Trade (DGFT) web portal.
To operate securely and effectively in today’s digital landscape, organizations are required to obtain a Class 3 Digital Signature Certificate (DSC). This certificate is essential for participating in legal transactions, filing tenders, and maintaining your company’s credibility in online operations.
Ensure your digital activities are protected and compliant by getting your Class 3 DSC issued through a licensed Certifying Authority. It's a critical step toward safeguarding your business in the digital age.
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